Drop Kerbs Construction Looking for Drop Kerb Contractors in Cambridgeshire? Here at Cambridge Surfacing Ltd we use approved drop kerb contractors, and unlike other driveway companies. Cambridge Surfacing Ltd use Highways Agency approved contractors that have all the relevant Street Accreditation Certificates and £5m Public Liability Insurance in compliance with local Council regulations. We have over 20 years expertise in arranging drop kerbs and with applying for the appropriate planning permission.